21000746452

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12295519}}^1$

素因数の和:12295591

約数の個数: 24

約数和(自身を含む): 42690045440

約数和(自身を除く): 21689298988

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12295519, 24591038, 49182076, 86068633, 172137266, 344274532, 750026659, 1500053318, 3000106636, 5250186613, 10500373226, 21000746452]

約数ペア:

[(1, 21000746452), (2, 10500373226), (4, 5250186613), (7, 3000106636), (14, 1500053318), (28, 750026659), (61, 344274532), (122, 172137266), (244, 86068633), (427, 49182076), (854, 24591038), (1708, 12295519)]